Ladder-scaffold bracket



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Sept.- 18 1923.1

F. T.PETERS LADDER scAFFoLD BRACKET Filed Feb- 23. 1922 A TTOR/VEYS 'the combinations, `constructions and ai-` l der.

' of a ladder 1,'such real-eee sept. is, leas.

nennnii-scsivrotn eneoiin'r.

`*Application filed February 2 To @ZZ whom t may concern f Y Be Vit known thatjl, Francis T. Pnriius, a citizen of the United States, and a resi dent of Decatur, in thecounty of Macon and State of Illinois, have invented a new and useful iiiprovenient inw Ladder-Scatlold -raclretgofrvvhich the folloivingis a full,

clear, and exact description. Y

My invention ielatesto improvements in ladder scaffold brackets., and it consists in rangements herein. described and clainied .An object of iny invention is to provide a device ofthe character described which may be quickly and easily attached to the ordinary type of ladder, suoli as a painters lad- A further object of niy invention is to provide Ya device of the character described, vliicli is heldsecurely in adjusted position by the load supported thereby. 1

A further object` of iny invention is to provide a device of the character described which may be adjusted to support a load in a horizontalplane notwithstanding Vthe fact that the ladder supporting the bracket may be at one of various angles from the vertical.V -5

A further object ol iny invention is to provide a deviceV of the charac-ter described which may be folded in a compact forni When in aninoperative position and easily carried about. Y

' @ther objects and advantages will appear in the following speciication. and the novel features of the inventionV ivill'be particularly pointed out -iii the appended claim: d y invention is illustrated in the accom-V, panying` drawings, forming part of this application, in which Fig. 1 is a topfv-plan view of an embodinient of my invention,

Fig. 2 is a side elevation ot the mechanism illustrated in Fig. 1, and

" Fig. 3 isa side elevation ofzny bracket folded in an inoperative position.

In carrying out my invention, l nialre use as the ordinary type of painters ladder, Which is in common use. The ladder 1 is provided with spaced apart rungs. Y Y Y A My ladderV scaffold bracket comprises a vertical upright-member 3 Ywhich consists oi, tvvo steel straps i and 5. The'straps 4 and 5 are disposed parallel relation toone another and are twisted at a point adiacent Y lower ends, as` shown ingr the sti-ut 8 are and aclevis 12 ,5. The bolt 18 is passed Fie. 3.

Vshown in Fig. Y closely against one side of the straps i and ,time threadingjthe iaclr 1-l s, 1132s. serial no. masse.

their upper ends,.as shown at t?. The upper portion of the straps and 5 are thereupon bent back to fern-'i arcuate lioolr nienibers 'Z'. A. strut 8 is pivotally mounted upon the upright members l and 5 adjacent their at 9 by means ot a bolt which is passed through the straps i and 5 and through the legs 10 et' the strut 8. he strut 8 is composed of tivo steel straps riveted to one another at 11 end having;r their opposite ends spread apart, i. e., the adjacent ends ol the straps are bent away fro-in one another at each bend of the strut `8. and the lower ends of the straps,V eoniprise'the legs 10. rElie upper ends of the straps compris relatively close together is pivotally mounted thereon. The airis 13 of the clevis 12 is passed directly through the tivo upper ends of the straps. as shown at 1. Ii rack le comprisingtivo steel straps 15 and 16 riveted to one another by means oi rivets 17, is pivotally mounted upon the uprig'lits e and 5 in the following inanner. rlhe ends of the straps 15 and 1G adjacent one end of the rack 14s are spread apart from one another and arranged to engage the inner surfaces of the straps 4: and through the straps 4 and 5 and the legs 19 oit tl e steel straps 15 and 16 comprising the raelr. vThe rack 111 is provided with a plurality of equally spaced apart inclined notches 20. The notches 2O are in the upper surface of the rack 1-1 and are arranged to receive and ongage a clevis 12.

Frein the foregoing' description ci the various parts of the device, the operation thercoi" niay be readily understood. Nornially, my ladder scaiii'old bracket and carried about iii the position shown in This is done by hineingr the strut 8 in a clockwise direction from the position 2, thereby folding the strut 5. The raclr 1li-'is hinged downwardly and in close engagement 'with the opposite sides oit' the straps i Vand 5.

ln applying` my device to a ladder 1, l su pend the upright supporting ineinbei 3 'iP-rein one of the runes 2 of the ladder 1. l tien elevate the rack 11i and swing the strut 8 toward its operative position, at the saine through the clevis 12. The rack is noiv moved to a horizontal position and the clevis 12 is per-` initted to drop into one of the inclined notches 2Ol The rack is non' ready tor use.

lt should be noted that it Weight is placed upon the rack 14, such as the pla-nh, as shown at 2l, containing paint pails Q2 or the like, will cause the lower edge Q3 of the rack le to Closely engage and bear upon the axis 13 of the clevis l2. it this time there is also a strong' downward pull of the clevis l2 in the notch 20, thus locking the bracket in its adjusted position by the Weight ot the load held thereon. i i

@ne of the important advantages brought about in my present invention is that there are no inwardly7 projecting portions of the upright member 3 which might obstruct the longitudinal movement oit a second ladder 2&- placed behind and close to the ladder l, such as is common practice in the present type of extension ladder.

Let us assume as an example that the ladder l is not in an upright position, as shown in the drawing, but is inclined at an angle from a vertical plane. The rack 14, ot course, must lie in a horizontal plane to prevent materials supported thereby from rolling ott' of the plank 2l. To this end it is merely necessary to movethe @levis A12 to one portion ot' the .of the other notches 2t) and thus VVirtually shorten one of thejsides oit the triangle 'formed by the strut S, the upright 3 and a rackY 14. YThis action Will bring` the rack lil to a horizontal plane even though the upright supporting members 3 are not disposed in a vertioal plane. A

ela-im: f i

device of the character descrioed comprising a supporting member having hooks for engagement with the rung of a ladder, a rack. pivotally mounted on said supporting member adjacent its upper end, said' rack being formed with ay Vplurality of inwardly slantingY spaced'apart notches in its upper surface strut pivotally mounted -on said simporting member at its lower end7 and a cleris vhan/ingv a central shaft pivotaliyY mounted on said strut at its outer end and arranged to receive Said rack;v'rhe-rebyV the outer end one ol' eaidSlanting notches so that the central shaft thereof may Contact the under sur- Ytace ot said'racl. and there-q,7 and strut against disengagement. Y

FRANCIS T. PETERS.

oir the clevismay be received in Y lool; the rack 

